| Issue |
EPL
Volume 128, Number 6, December 2019
|
|
|---|---|---|
| Article Number | 62002 | |
| Number of page(s) | 7 | |
| Section | Nuclear Physics | |
| DOI | https://doi.org/10.1209/0295-5075/128/62002 | |
| Published online | 07 February 2020 | |
Projectile-dependent scintillation of a liquid phase argon-xenon mixture
Physik-Department, Technische Universität München - James-Franck-Straße 1, 85748 Garching, Germany
Received: 10 September 2019
Accepted: 8 January 2020
The ratio of the scintillation intensity in the near-infrared (NIR) and in the vacuum-ultraviolet (VUV) from liquid argon with a volumetric fraction of 
of xenon (10 ppm) was studied with ion-beam excitation. Hydrogen, lithium, carbon, sulfur, and iodine ions from the Munich Tandem accelerator were used for excitation. Average linear energy transfer (LET) values from 4.4 to 3500 MeV /mm were tested by the experiments. A variation of the NIR to VUV intensity ratios by a factor of 
20 was observed. This is a promising result for the development of liquid argon-xenon detectors with sole optical particle identification and background reduction in rare-event physics. The results are interpreted on the basis of energy deposition around the particle tracks.
PACS: 29.40.Mc – Scintillation detectors
© EPLA, 2020
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